TY - GEN
T1 - User-Centric Detection with Interference and Base Station Connection Sparsities
AU - Sun, Rui
AU - Song, Linfeng
AU - Sun, Chen
AU - Shi, Ding
AU - Gao, Xiqi
AU - Xia, Xiang Gen
N1 - Publisher Copyright:
© 2025 IEEE.
PY - 2025
Y1 - 2025
N2 - In this paper, we investigate the signal detection for user-centric network (UCN) massive multi-input multi-output (mMIMO) system. We consider that the users are divided into multiple user groups (UGs). For each UG, leveraging the interference and base station (BS) connection sparsities, we reveal that the performance of the minimum-mean-square-error (MMSE) detector can be guaranteed by a small number of interfering users and a limited number of associated BSs. Then, we propose a user-centric detection method that decouples the detection process for each UG into two stages. In the first stage, local MF is performed at each associated BSs using local information. In the second stage, group-wise interference cancellation (IC) is carried out to obtain detection results at the primary serving BS (PSBS) of each UG, with information exchanged from auxiliary serving BSs (ASBSs). Simulation results confirm the effectiveness and computational efficiency of our proposed user-centric detection for the UCN mMIMO system.
AB - In this paper, we investigate the signal detection for user-centric network (UCN) massive multi-input multi-output (mMIMO) system. We consider that the users are divided into multiple user groups (UGs). For each UG, leveraging the interference and base station (BS) connection sparsities, we reveal that the performance of the minimum-mean-square-error (MMSE) detector can be guaranteed by a small number of interfering users and a limited number of associated BSs. Then, we propose a user-centric detection method that decouples the detection process for each UG into two stages. In the first stage, local MF is performed at each associated BSs using local information. In the second stage, group-wise interference cancellation (IC) is carried out to obtain detection results at the primary serving BS (PSBS) of each UG, with information exchanged from auxiliary serving BSs (ASBSs). Simulation results confirm the effectiveness and computational efficiency of our proposed user-centric detection for the UCN mMIMO system.
KW - Base station connection sparsity
KW - interference sparsity
KW - signal detection
KW - user-centric network massive MIMO
UR - https://www.scopus.com/pages/publications/105034212402
U2 - 10.1109/ICCT67417.2025.11374131
DO - 10.1109/ICCT67417.2025.11374131
M3 - Conference contribution
AN - SCOPUS:105034212402
T3 - International Conference on Communication Technology Proceedings, ICCT
SP - 291
EP - 296
BT - 2025 IEEE 25th International Conference on Communication Technology, ICCT 2025
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 25th IEEE International Conference on Communication Technology, ICCT 2025
Y2 - 16 October 2025 through 18 October 2025
ER -